snowman-repos’s gists

snowman-repos / Verify that a given argument is a number

Created February 6, 2014 08:53

Verify that a given argument is a number

	isNumber = (n) ->
	not isNaN(parseFloat(n)) and isFinite(n)

snowman-repos / Transform the arguments object into an array

Created February 6, 2014 08:53

Transform the arguments object into an array

argArray = Array::slice.call(arguments_)

snowman-repos / A string trim function

Created February 6, 2014 08:48

A string trim function

	String::trim = ->
	@replace /^\s+\|\s+$/g, ""

snowman-repos / Generate a random set of alphanumeric characters

Created February 6, 2014 08:47

Generate a random set of alphanumeric characters

	generateRandomAlphaNum = (len) ->
	rdmString = ""
	while rdmString.length < len
	rdmString += Math.random().toString(36).substr(2)
	rdmString.substr 0, len

snowman-repos / Shuffle an array of numbers

Created February 6, 2014 08:46

Shuffle an array of numbers

snowman-repos / Generate an array of numbers with numbers from 0 to max

Created February 6, 2014 08:33

Generate an array of numbers with numbers from 0 to max

	numbersArray = []
	max = 100
	i = 1 # numbers = [1,2,3 ... 100]
	while numbersArray.push(i++) < max

snowman-repos / Get a random number in a specific range

Created February 6, 2014 08:33

Get a random number in a specific range

x = Math.floor(Math.random() * (max - min + 1)) + min

snowman-repos / Determine if an Element is in the Viewport

Created February 6, 2014 08:30

Determine if an Element is in the Viewport

	# Determine if an element is in the visible viewport
	isInViewport = (element) ->
	rect = element.getBoundingClientRect()
	html = document.documentElement
	rect.top >= 0 and rect.left >= 0 and rect.bottom <= (window.innerHeight or html.clientHeight) and rect.right <= (window.innerWidth or html.clientWidth)

snowman-repos / Determining Max-Width of Responsive Images

Created February 6, 2014 08:29

Determining Max-Width of Responsive Images

	# Get image's max-width:100%; in pixels
	getMaxWidth = (img) ->
	maxWidth = undefined

	# Check if naturalWidth is supported
	if img.naturalWidth isnt `undefined`
	maxWidth = img.naturalWidth

	# Not supported, use in-memory solution as fallback
	else

snowman-repos / Manipulating the DOM

Created February 6, 2014 08:26

Manipulating the DOM, without jQuery

	# Select an element
	element = document.querySelector(".class")

	# Clone it
	clone = element.cloneNode(true)

	# Do some manipulation off the DOM
	clone.style.background = "#000"

	# Replaces the original element with the new cloned one

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